High melting point, High-density, high temperature oxidation resistance, long service life, resistance to corrosion. 1. Grand:W1,W22. Purity :>=99.95%3. Characteristic:Melting Point: 3410 Degrees CelsiusBoiling Point: 5927°CDensity: 19.3g/m3High quality, workability4. Quality certification: ISO90025. Product Feature: High melting point, High-density, high temperature oxidation resistance, long ...